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Human Body Systems > Face and Infratemporal Fossa > Flashcards

Face and Infratemporal Fossa Flashcards

1
Q

face

A

anterior aspect of the head in between the eyebrow and the chin, base of mandible; also from ear to ear

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2
Q

Scalp

A

covers the superior, lateral and posterior of the calvaria

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3
Q

What layers make up the scalp from superficial to deep?

A

Skin, CT, aponeurosis, loose areolar tissue, and periosteum

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4
Q

What makes up scalp proper?

A

Skin, CT, and aponeurosis

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5
Q

What is within skin layer?

A

hair and sebaceous glands

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6
Q

What is within CT layer of scalp?

A

fibrofatty tissue, blood vessels and nerves, holding skin and aponeurosis together

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7
Q

What makes up aponeurosis layer of scalp?

A

thin tendinous sheet connects the occipital and frontal bellies of occipitofrontalis muscle.

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8
Q

Occipitalfrontalis muscle IM

A

M: Moving of the scalp, Wrinkles the forehead • , Raises the eyebrows
I: CNVII

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9
Q

Occipitalfrontalis muscle arterial supply

A

Branches of internal

carotid artery and external carotid artery

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10
Q

What is in loose areolar tissue and function

A

allowing movement of scalp proper, contains emissary veins

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11
Q

Periosteum function

A

covers the bone surface

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12
Q

Characteristics of face/facial muscles

A

Muscle of facial expression
Very vascular, face blush or blanch
Face wounds bleed profusely but heal rapidly Sebaceous gland – acne

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13
Q

Functional groups of facial muscles

A

Orbital
Nasal
Oral

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14
Q

Muscles in orbital group and location to one another

A

Orbicularis oculi – superficial

Corrugator supercilii – deep to orbicularis oculi

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15
Q

Orbicularis oculi IM

A

M: Orbital – forcefully closes the eyelid
Palpebral – gently closes the eyelid
I: CNVII

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16
Q

Corrugator supercilii IM

A

M: Draw the eyebrows
medially and downward
I: CNVII

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17
Q

Muscles within Nasal group

A

Nasalis – Transverse and Alar
Procerus
Depressor septi

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18
Q

Nasalis IM

A

M: Transverse – compresses nasal aperture
Alar – opens nostril
I: CNVII

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19
Q

Procerus IM

A

M: Draws the medial
eyebrows downward Makes transverse
wrinkles over the bridge of nose
I: CNVII

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20
Q

Depressor Septi IM

A

M: Pull the nose inferiorly
I: CNVII

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21
Q

Muscles in oral group

A 
Obicularis oris
Levator labii superioris alaeque nasi
Levator labii superioris
Depressor labii inferioris
Zygoma>cus major and minor
Levator anguli oris
Depressor anguli oris
Buccinator
Risorius
Mentalis
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22
Q

Obicularis oris, buccinator, and mentalis I

A

CNVII

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23
Q

Obicularis oris M

A

closes lips, protrudes lips

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24
Q

buccinator M

A

compress cheeks, pressing checks

against teeth

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25
mentalis M
Raise and protrude lower lip and wrinkle skin on chin
26
Levator labii superioris alaeque masi (LLSAN) IM
M: Most medial, lift upper lip and open nostrils I: CNVII
27
levator labii superioris IM
M: Lateral to LLSAN, lift upper lip I: CNVII
28
zygomaticus major and minor IM
M: Major – help smile, raise corner of the mouth Minor – help smile I: CNVII
29
Levator anguli oris IM
M: raise corner of the mouth I: CNVII
30
Depressor anguli oris IM
M: Depress corner of the mouth I: CNVII
31
depressor labii inferioris IM
M: Depress lower lip I: CNVII
32
Risorius IM
M: Pull the mouth backward and outward I: CNVII
33
arterial supply of face
primarily from branches of external carotid artery (ECA) and small contribution from internal carotid artery (ICA)
34
Branches of ECA
Facial artery Maxillary artery Superficial temporal artery
35
anatomical landmarks of mandible
``` Condyle process (Head, Neck) Coronoid process Ramus Body Mental foramen ```
36
What is mandible attached to?
Mandibular fossa
37
Tempeoromandibular joint (TMJ): what kind of joint and how it is divided
Synovial joint with an articular disc | Divided into upper and lower joint cavity
38
Ligaments of TMJ
Temporomandibular ligament (Lateral & capsular ligaments w/ capsular deeper) Stylomandibular ligament Sphenomandibular ligament
39
Functions of TMJ ligaments
Prevent dislocation Connect mandible to cranium Define the movement border of mandible
40
Movements of mandible
Protrusion Retraction Elevation Depression
41
Muscles of mastication
Temporalis Masseter Medial pterygoid Lateral pterygoid
42
M of temporalis and masseter
elevation of mandible
43
Medial pterygoid M
elevation of mandible
44
lateral pterygoid M
protrusion of mandible
45
Temporal fossa
Narrow fan shape at the | lateral aspect of the skull
46
Infratemporal fossa
Irregular shape, inferior of temporal fossa and deep and inferior to zygomatic arch
47
Borders of temporal fossa
Superior: superior temporal line Inferior: zygomatic arch Anterior: frontal process of zygomatic bone, zygomatic process of frontal bone Floor: frontal, parietal, temporal and sphenoid
48
contents of temporal fossa
Temporalis muscle Branches of CNV Branches of maxillary artery Branches of superficial temporal artery
49
borders of infratemporal fossa
``` Superior: greater wing of sphenoid Inferior: medial pterygoid Anterior: posterior of maxilla Posterior: mastoid and styloid process Lateral: ramus of mandible ```
50
contents of infratemporal fossa
``` Inferior part of temporalis muscle Sphenomandibular ligament; lateral and medial pterygoid Maxillary artery and its branches Branches of CNV, CNVII, CNIX Otic ganglion ```
51
borders of external, middle, and inner ear
External ear – middle ear: tympanic membrane Middle ear – internal ear: within the temporal bone
52
External ear components
Auricle and external acoustic canal
53
Components of auricle
``` Majorly cartilage Helix Lobule Concha Tragus Antitragus ```
54
components of middle ear
Tympanic membrane, pharyngotympanic tube, auditory ossicles, tensor tympani, stapedius, and epitympanic recess
55
What is tympanic membrane attached to?
malleus
56
Function of pharyngotympanic tube
equalizes pressure
57
Components and function of auditory ossicles
Function: Transmit vibration | Components: Malleus, Incus, Stapes
58
Tensor tympani function
tenses tympanic membrane
59
Stapedius function
Preventing excessive oscillation
60
Components of inner ear
Within temporal bone Bony labyrinth Membranous labyrinth Organ of balance Organ of hearing
61
Components of organ of balance
Semicircular canals and ducts Utricle Saccule
62
Components of organ of hearing
Cochlea and cochlear duct

Human Body Systems (17 decks)

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